C / C++ / MFC Discussion Boards

Nitheesh George14-Feb-08 16:40

14-Feb-08 16:40

Hi you can use AfxGetInstanceHandle() if u r using MFC or if it is Win32 HANDLE hModule in dllmain function is the HINSTANCE.

Re: About ActiveX Control

manish.patel14-Feb-08 18:02

manish.patel

14-Feb-08 18:02

Thank you for reply

i am not getting your reply.

I want to handle all mouse events that are occuring in windows(out side of activex control also).

Is it possible? if it then how can i do it?

Manish Patel.
B.E. - Information Technology.

Re: About ActiveX Control

Nitheesh George14-Feb-08 22:38

Nitheesh George

14-Feb-08 22:38

your Question : "Now another problem is how to get HINSTANCE in activex control?

I can get it in win32 application but how to get it in activex control?

Please help me out"

Answer:

To get the instance of an activex control you can use AfxGetInstanceHandle() in MFC.

eg: g_hInstance = AfxGetInstanceHandle();

or if u are developing a Win32 ActiveX Control you can use HANDLE hModule in dllmain function is the HINSTANCE.

like this way -

int Dllmain(HMODULE hModule...)
{
g_hInstance = (HINSTANCE) hModule;
......................
......................
}

i think now u got what i mean?

stuck with progress bar

Chandrasekharan P12-Feb-08 22:25

Chandrasekharan P

12-Feb-08 22:25

just wanted to know how do i set the progress bar.. i am creating a media player.. a simple player where in we can play and stop the song. now i need to add more functionalites.. i want to implemeny a progress bar which moves as the songs goes on... or rather synchonizes with the song.. some leads.. if sombody has done is then please help me in doing this.

Re: stuck with progress bar

Don Box12-Feb-08 23:11

Don Box

12-Feb-08 23:11

CProgressCtrl::SetRange()
CProgressCtrl::SetStep() // Optional
CProgressCtrl::StepIt () // Optional
CProgressCtrl::SetPos ()
CProgressCtrl::GetPos ()

Use any of the above given methods.

Come online at:-
jubinc@skype

Re: stuck with progress bar

David Crow13-Feb-08 2:51

David Crow

13-Feb-08 2:51

If you are using MFC, see here.

"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Substring from a string

CodingLover12-Feb-08 21:49

CodingLover

12-Feb-08 21:49

Hi all,

I have string like this.

First name: name

I want to get the string after the ':'. What is the easiest way.

I'm wired with my way, find the length, find the place where : sign include and stuck...

I appreciate your help all the time...
Eranga Smile | :)

Re: Substring from a string [modified]

Rajesh R Subramanian12-Feb-08 22:02

Rajesh R Subramanian

12-Feb-08 22:02

If you're using MFC, it'd be easily done with the CString::Mid() function:

CString str = _T("Name: Rajesh");
int iPos = str.Find(_T(":"),0);
AfxMessageBox(str.Mid(iPos+1));

Or, if you aren't using MFC, then perhaps this helps you:

TCHAR *tch = new TCHAR(20);
tch = _T("Name:Rajesh");

while(tch++)
{
    if(*tch == ':')
    {
        ::MessageBox(NULL, (tch+1), _T("Message"), MB_ICONINFORMATION);
        break;
    }
}delete tch;

Last modified: 15mins after originally posted --

Rajesh.

Re: Substring from a string

CPallini12-Feb-08 22:34

CPallini

12-Feb-08 22:34

And what is the purpose of heap allocated memory?

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

Re: Substring from a string

Rajesh R Subramanian12-Feb-08 23:02

Rajesh R Subramanian

12-Feb-08 23:02

My bad mood perhaps? Seriously, just typed it out fast, tried and pasted here. Shouldn't have been fragmenting the precious heap though. Will take care of this in the future, my lord. Smile | :)

Re: Substring from a string

CPallini12-Feb-08 23:15

CPallini

12-Feb-08 23:15

Rajesh R Subramanian wrote:
my lord

Wasn't Dunn?
Laugh | :laugh:

Re: Substring from a string

Rajesh R Subramanian12-Feb-08 23:22

Rajesh R Subramanian

12-Feb-08 23:22

CPallini wrote:
Wasn't Dunn?

Opph korse he izz. Laugh | :laugh:

Re: Substring from a string

CPallini12-Feb-08 23:34

CPallini

12-Feb-08 23:34

Re: Substring from a string

Don Box12-Feb-08 23:06

Don Box

12-Feb-08 23:06

If CString is used, write

CString str;
str.Mid (str.Find (':'));

If not using CString, write

char* pszName = strstr (variable, ":");
if (pszName != NULL)
{
  pszName is valid pointer.
}

Come online at:-
jubinc@skype

Re: Substring from a string

CodingLover13-Feb-08 0:28

CodingLover

13-Feb-08 0:28

Thanks, actually I'm trying this on standard C++ pal Smile | :)

I appreciate your help all the time...
Eranga Smile | :)

Re: Substring from a string

CodingLover13-Feb-08 0:17

CodingLover

13-Feb-08 0:17

This what I have done

    string strPT("First name: name");
int strLength = strPT.length();
int indexOfCol = strPT.find(':');

string strMess = strPT.substr(indexOfCol + 2, (strLength - indexOfCol));

I appreciate your help all the time...
Eranga Smile | :)

Formated Input

lgatcodeproject12-Feb-08 21:36

lgatcodeproject

12-Feb-08 21:36

Hi All,
"<Name>get input from user </Name>"
is it possible to get input from user as depicted in the above method.

The console will echo the "Name" tag and the cursor should be blinking in between the start and end of "Name" tag where in the user should enter a valid input.

kindly let me know. Thanks.

Regards,

lgatcodeproject

Re: Formated Input

Rajesh R Subramanian12-Feb-08 21:40

Rajesh R Subramanian

12-Feb-08 21:40

May be you could use gotoxy() to put the cursor in between.

To solve my problem... Finally I installed VC in the client's system. Now the assertion error is not coming..its working. - Anu Bala, in the Visual C++ forum[^]

CButton Ugly border

sarat12-Feb-08 21:04

sarat

12-Feb-08 21:04

how to remove ugly border arround the CButton control ? in vista
in win2k3 its appears narmal
the black color border luks ugly in vista
please some one suggest me with the solution

Re: CButton Ugly border

Iain Clarke, Warrior Programmer12-Feb-08 23:59

Iain Clarke, Warrior Programmer

12-Feb-08 23:59

Join microsoft's design team?

More usefully, for an application to get the Vista look, it need to include what's called a manifest.

Do a search for vista, application, manifest etc, and that should help.

Good luck,

Iain.

Iain Clarke appearing in spite of being begged not to by ^CPallini.

Re: CButton Ugly border

David Crow13-Feb-08 3:06

David Crow

13-Feb-08 3:06

Iain Clarke wrote:
More usefully, for an application to get the Vista look, it need to include what's called a manifest.

So should the OP be removing the manifest then (if he doesn't want the new look)?

Re: CButton Ugly border

Iain Clarke, Warrior Programmer13-Feb-08 3:42

Iain Clarke, Warrior Programmer

13-Feb-08 3:42

My reading was that he had a "classic" application, which was just fine when the OK and other apps matched.

Now he has it on a "shiny" os, the "classic" look doesn't fit in.

And I'm pretty sure that vista requires a manifest for the app before it will apply the new user controls look to it. Beyond that, it gets beyond me. I *think* a manifest is just some xml in the resources or in a similarly named (eg. myapp.exe.manifest) file nearby. Which is why I pointed him at google with the search clues in order to preserve my illusion of omniscience.

Iain,

Iain Clarke appearing in spite of being begged not to by ^CPallini.

WaitCommEvent() and new line

rp_suman12-Feb-08 21:00

rp_suman

12-Feb-08 21:00

I am debugging the application dealing with COM port.
The WaitCommEvent() function is called after setting mask with EV_RXCHAR and EV_TXEMPTY.
Even when there is no data coming from outside to COM port, WaitCommEvent() returns with new line character(10) continuously and the CPU usage becomes 100%.
Does anybody know why the new line character is coming?
Any help would be greatly appreciable!!

Best Regards,
Suman

Re: WaitCommEvent() and new line

Cedric Moonen12-Feb-08 21:05

Cedric Moonen

12-Feb-08 21:05

rp_suman wrote:
WaitCommEvent() returns with new line character(10)

WaitCommEvent returns a BOOL. Did you check if it returns TRUE ?

And what do you mean by "returns new line character" ? You read the port just after WaitCommEvent returns ?

Can you post a relevant code snippet ?

Cédric Moonen
Software developer

Charting control [v1.2]

Re: WaitCommEvent() and new line

rp_suman12-Feb-08 21:34

rp_suman

12-Feb-08 21:34

Hi, Sorry, WaitCommEvent() returns "false" and its 2nd parameter set to value RX_CHAR(i.e, 1)
and the ReadFile() function gives the new line character in its 2nd parameter.

Best Regards,
Suman

code snippet is here:

<br />
    if(!SetCommMask(serialObj.m_hCom, EV_RXCHAR | EV_TXEMPTY)) <br />
		return ERRCODE;<br />
<br />
    while(serialObj.m_hCom != NULL)<br />
	{<br />
		BOOL bRet = WaitCommEvent( serialObj.m_hCom, &dwCommEvt, &serialObj.comReader );<br />
		<br />
		if ( dwCommEvt & EV_RXCHAR ) {<br />
<br />
			do {<br />
				retval = ReadFile( serialObj.m_hCom, &lpBuff, 1, &dwRead, &serialObj.comReader );<br />
	        <br />
				if( retval && dwRead > 0 ) {   <br />
     <br />
 							//code stuff..<br />
							....<br />
							SetEvent(serialObj.hReadEvent);<br />
						}<br />
				}<br />
			} while( dwRead > 0 );<br />
		}<br />
	}<br />
<br />
	AfxEndThread(0);<br />

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